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Jyutping jat1 mou4 so2 zi1
Pinyin yī wú suǒ zhī

Definitions (CC-CEDICT)
  1. not knowing anything at all (idiom); completely ignorant
  2. without an inkling
Definitions (粵典–words.hk)
  1. 動詞
    一​啲​認識​都​冇​,​完全​唔​知道
    to know nothing about; to be absolutely ignorant of
    • 佢喺孤兒院長大,對自己嘅身世一無所知。
      佢喺孤儿院长大,对自己嘅身世一无所知。
      keoi5 hai2 gu1 ji4 jyun2 zoeng2 daai6, deoi3 zi6 gei2 ge3 san1 sai3 jat1 mou4 so2 zi1.
      He grew up in the orphanage, knowing nothing about his own background.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to know nothing
    • 他對這事一無所知。
      他对这事一无所知。
      tā duì zhè shì yī wú suǒ zhī .
      He knows nothing about this matter.
    • 佢对呢件事一无所知。
      佢对呢件事一无所知。
      keoi5 deoi3 ni1 gin6 si6 jat1 mou4 so2 zi1.
      He knows nothing about this matter.
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Definitions (HSK3.0)
  1. HSK3 七一九级词汇表 #4944
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    她对性一无所知。
    她對性一無所知。
    tā duì xìng yī wú suǒ zhī 。
    • She knows nothing about the birds and the bees.
  2. Mandarin
    我对日本一无所知。
    我對日本一無所知。
    wǒ duì rì běn yī wú suǒ zhī 。
    • I don't know anything about Japan.
  3. Mandarin
    我对这个计划一无所知。
    我對這個計劃一無所知。
    wǒ duì zhè ge jì huà yī wú suǒ zhī 。
    • I am quite ignorant of the plan.
    • I know nothing about this project.
  4. Mandarin
    我对她一无所知。
    我對她一無所知。
    wǒ duì tā yī wú suǒ zhī 。
    • I know nothing about her.
    • I don't know a thing about her.
    • I don't know anything about her.
  5. Mandarin
    真奇怪, 你对她的婚礼一无所知。
    真奇怪, 你對她的婚禮一無所知。
    zhēn qí guài , nǐ duì tā de hūn lǐ yī wú suǒ zhī 。
    • It's surprising that you haven't heard anything about her wedding.
    • It's odd that you don't know anything about her wedding.
Examples (粵典–words.hk)
  1. Cantonese
    子宫颈癌系常见嘅癌症,但系好多女人对呢个病一无所知。
    子宮頸癌係常見嘅癌症,但係好多女人對呢個病一無所知。
    • 子宮頸癌是常見的癌症,然而很多女性對此病所知並不多。
    • Cervical cancer is quite a common cancer; however, most women do not know much about the illness.
  2. Cantonese
    佢喺孤儿院长大,对自己嘅身世一无所知。
    佢喺孤兒院長大,對自己嘅身世一無所知。
    keoi5 hai2 gu1 ji4 jyun2 zoeng2 daai6, deoi3 zi6 gei2 ge3 san1 sai3 jat1 mou4 so2 zi1.
    • He grew up in the orphanage, knowing nothing about his own background.
Examples (Wiktionary)
  1. Mandarin
    他对这事一无所知。
    他對這事一無所知。
    tā duì zhè shì yī wú suǒ zhī .
    • He knows nothing about this matter.